private TagDirectiveCollection NonDefaultTagsAmong(IEnumerable<TagDirective> tagCollection)
{
var directives = new TagDirectiveCollection();
if (tagCollection == null)
return directives;
foreach (var tagDirective in tagCollection)
{
AppendTagDirectiveTo(tagDirective, false, directives);
}
foreach (var tagDirective in Constants.DefaultTagDirectives)
{
directives.Remove(tagDirective);
}
return directives;
}
